Lawn-sprinkler.



B. F. CATHCART.

LAWN SPRINKLER.

APPLIGATloN FILED H1124, 1912.

Patented Apr. 8. 1913.

BVM/blug ATTORNEYS WIT/VESSES UNITED sTATEs PATENT oEEIoE.

BENJAMIN FRANKLIN CATHCART, VOIE" FBESNQ, CALIFORNIA.

LAWN-SPRINXLEB'.

Specification of Letters Patent.

Application led February 24, 1912. Serial No. $179,561.

Patented Apr. s, 19,13.

To all whom t may concern:

Be it known that I, BENJAMIN F. CATH- GART, a citizen of the United States, and a resident of Fresno, in the county of Fresno and State of California, have invented a new and Impipved Lawn-Sprinkler, of which the following-is a`full, clear, and exact description.

The invention relates to a lawn sprinkler having a rose nozzle, or the like, andmcunted to be raised andlowered in a box or housing adapted to'be set in the lawn level lwith the ground. y

In m invention the sprinkler is so attached to the service pipe and to the box or ',housing that the water pressure will raise the sprinkler automatically, there being a novel form of closure, comprising two vertically rocking cover sections which are engaged by the sprinkler head or nozzle in its upward movement to open the closure, the arrangement being such that upon the withdrawal of the pressurel andthe consequent dropping of thevnozzle or sprinkler, the cover sections ywill be automaticall Vsections thereof in open position; and Fig. 2

is a vertical section on an' enlarged scle, showing the cover closed and the sprinkler in the lower position.

In constructing my ,improved device in i' the form illustrated, the sprinkler 10 is i' flaps 13, meeting at about the center of the mounted to slide at its lower end within the upper end of the service pipe'll, to which 1s secured the box .or housing 12, the latter being in practice set in-the ground level with the surface. 'The upper end of the housing 12 is provided with a closure preferably consisting of two hinged cover sections or housing, and pivoted to the latter at the outside as by brackets 12 and hinge pins 13l psu-:singV through lugs on said cover sections and through said brackets.

'The rose nozzle or other sprinkler head 14 is adapted in moving upward to contact with the cover sections-13, which will raise the latter onV their hinges. These cover sections are provided on the under side with depending 'pins or equivalent members 15, so

positioned and proportioned as `to swing in- Ward and upward as the cover sections. rise, sald depending pins being adapted to be ,struck by a flange 16 or its equivalent on the vstem 171of`the'sprinkler.

Thus the cover sections comprise membersthat'are struck in succession by the sprinkler head and by members below. said head, whereby the cover sections will be fully raised. Upon the pressure of the water being. withdrawn, the sprinkler will gravitate-to the lower position, and in this instance, the under side of the sprinkler head will contact with the pins 15 and draw thecover sections inward to close over the sprinkler.

. The stem 17 of the sprinkler in the preferred form consists of-a short section which is connected in any suitable manner to a second elongated tubular member 18, as by any suitable union or coupling 19, the tubular member 18 telescoping in the upper end of the service pipe 11, and being limited .as

toits outer movement by a cap or bonnet w20' von the u per end of the service pipe within the housing 12. The lower section 18 of the sprinkler is further preferably provided with a packing ring or gasket 21, held in pia-ce by a threaded collar '.22 which is adjustable on the section 18 so as to regulate the'jieight to which the nozzle may ascend under the action of the water pressure and to form a water-tight closure between the stem 18 and the cap 20. Since t-he packing ring or gasket 21 forms a water-tight joint` against thec'ap 20, the stem may be fitted with comparative looseness in the service pipe 11, so as to readily respond to the water pressure. On the extreme lower end of the section 18 a further exterior ring 23 is fitted .to move between said section and the service pipe to guide the section 18in its longitudinal movement and steady it under the strain of the water pressure. y

The box or housing 12 may be secured in any suitable manner to the service pipe; as by securing the bottom 24 to the housing by Water pressureresults in the automatic lowering of the sprinkler and the closing of the cover, leaving the lawn without obstruction.

It `will he iinderstood that the details specified may be varied without departing from the essential 'features characterizing my improved sprinkler and its appurtenances.

Havingthus described my invention, I claim as new and desire to secure by Letters Patent:

1. The combination of a sprinkler and a housing in which the sprinkler is mounted to project beyond the housing, said housing having a movable cover part provided with separate elements against which the sprinkler contacts in succession to open the closure.

2. The combination of a sprinkler and a housing in which the sprinkler is movable under the influence of water pressure to project beyond the housing, said housing having a swinging cover part provided with separate elements .against which the sprinkler contacts in succession in its upward movement to open the closure, the sprinkler -tending to drop by gravity and contacting in its downward movement Awith said cover part to close the same.

3. The combination of a sprinkler, anda housing in which the sprinkler is movable to project beyond the housing and to recede within the latter by gravity, said housing having a cover part, and the sprinkler having a plurality of members movable 1n succession into contact with the cover part to raise the latter.

4 jlhe combination with a housing hav-A ing a swinging cover provided with a depending member, of a sprinkler movably connected with the housing to -project beyond the same and to recede within the houslng, the upper end of said sprinkler being movable against the cover said sprinkler havin` a member below its upper end for engaglng t-he depending member on the `cover in Ythe youtward. movement of the sprinkler.

5. The combination of a housing provided with a cover part presenting two members at approximately right angles to each other, and a sprinkler movable in the housing to project therefrom and to recede within the same, the head of said sprinkler being movable against one of said members in the outward movement of the s rinkler and having a second member movab e against the second member of the cover in s'aid outward movement, the sprinkler head in its receding movement contacting with the second member of the cover to close the latter.

6. The combination` with a housing having a swinging cover formed with a member inward from the edge thereof and dis osed at an angle thereto, and a nozzle mova le to project beyond the housing or to recede thereinto, said nozzle having a member to contact with the said member on the -housing, when the nozzle moves outward, said jnozzle havingl a second member in addition to the first-mentioned member,4 to contact with the mentioned member on the cover in the receding movement of the nozzle.'

In testimony whereof I have signed my name to this specification inthe presence of two subscribing witnesses.

BENJAMIN FRANKLIN CATIICART.

Witnesses:

CATHRINE A. CATHCART, Mrs. LESLIE M. DREW. 

